feat: v5 — boxing poster fight cards, 12-char names, diverse mock bots

- Fight Card page: dramatic poster background with cross-hatch, spotlights,
  vignettes, corner brackets, scan lines; 3D VS orb with punch animation;
  selectable undercard with main event always pinned at top
- PosterSprite: high-quality 480px poster frame with 6-pass renderer
  (aura, glow, bevel, specular, particles); PixelGlove component
- 12-char bot name limit across all forms and server validation
- Mock bots: all 100 now have diverse archetypes (25 types), 25% human
  fighters; seedMockBots updates existing bots on restart
- Leaderboard: inline SpritePreview next to each bot name
- Nostr auth: persistent login, nsec copy button
- Wallet: NWC + Lightning Address, ranked fight flow
- Server: payments, ranked queue, customization endpoint

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pnpm-lock.yaml

@@ -69,6 +69,9 @@ importers:
       chalk:
         specifier: ^5.6.2
         version: 5.6.2
+      dotenv:
+        specifier: ^17.3.1
+        version: 17.3.1
       drizzle-orm:
         specifier: ^0.40.1
         version: 0.40.1(@types/better-sqlite3@7.6.13)(better-sqlite3@11.10.0)(gel@2.2.0)
@@ -1724,6 +1727,10 @@ packages:
     resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
     engines: {node: '>=8'}
 
+  dotenv@17.3.1:
+    resolution: {integrity: sha512-IO8C/dzEb6O3F9/twg6ZLXz164a2fhTnEWb95H23Dm4OuN+92NmEAlTrupP9VW6Jm3sO26tQlqyvyi4CsnY9GA==}
+    engines: {node: '>=12'}
+
   drizzle-kit@0.30.6:
     resolution: {integrity: sha512-U4wWit0fyZuGuP7iNmRleQyK2V8wCuv57vf5l3MnG4z4fzNTjY/U13M8owyQ5RavqvqxBifWORaR3wIUzlN64g==}
     hasBin: true
@@ -4625,6 +4632,8 @@ snapshots:
 
   detect-libc@2.1.2: {}
 
+  dotenv@17.3.1: {}
+
   drizzle-kit@0.30.6:
     dependencies:
       '@drizzle-team/brocli': 0.10.2